Jungle Rumble, also called Floor 4 (Floor 3 in the British English version), is the fourth floor in Mario vs. Donkey Kong: Minis March Again!. On this floor, minis make extensive use of Color Switches in order to toggle Color Blocks or turn enemies such as Shy Guys and Polterguys into harmless blocks. Snifits and Polterguys are introduced on this floor while Shy Guys, Capture Kongs and Circus Kongs make a return. Defeating Donkey Kong on this floor grants access to the Jungle Rumble Construction Kit in the Construction Zone, which contains all the elements present on this floor.
The background consists of a dense palm tree jungle over a blue sky painted on a wall. The music is the same as in Jungle Hijinks from Mario vs. Donkey Kong 2: March of the Minis, being a rendition of the "DK Island Swing" track from Donkey Kong Country.
This floor contains a single tutorial level that showcases Color Blocks. The player can access and play it by tapping on the "?" icon in the bottom right corner of this floor's level select screen.
In Plus Mode, this floor is subtitled Floor 4+ (Floor 3+ in the British English version). Conveyors, Rotate Pipes, Pokeys and a Thwomp, which were absent in the floor's Normal Mode counterpart, make an appearance in the Plus Mode version. Beating Jungle Rumble in Plus Mode adds all of these elements to the Jungle Rumble Construction Kit.
The backdrop of this floor is nearly identical to the Normal Mode counterpart, except for the light-purple sky. The soundtracks that play in Rooms 4-1+, 4-2+, 4-4+, 4-5+, 4-7+, 4-Key+ and 4-SP+ are arrangements of the first two soundtracks of Fire Mountain from Mario vs. Donkey Kong, while the track that plays in Rooms 4-3+ and 4-6+ is an arrangement of the fourth soundtrack of Twilight City, also from Mario vs. Donkey Kong.